CreateQuote.cls

public class CreateQuote{
 @AuraEnabled
 public static Opportunity getOpportunity(Id taskid) {
 system.debug('ID-->'+taskid);
 //Get all fields which needs to be prepopulated on Quote .
 Task objTask = [SELECT Id, whatid FROM task WHERE Id = :taskid];
 Opportunity objOpportunity = [select id,account.name,account.billingcity,account.billingcountry,account.billingstate,
 account.billingpostalcode,accountid,name,account.BillingStreet from opportunity where id=:objTask.whatid];
 return objOpportunity;
 }
}

CreateQuote.cmp

<aura:component controller="CreateQuote" implements="force:hasRecordId,flexipage:availableForAllPageTypes,force:lightningQuickActionWithoutHeader" access="global" ><aura:component controller="CreateQuote" implements="force:hasRecordId,flexipage:availableForAllPageTypes,force:lightningQuickActionWithoutHeader" access="global" >
 <aura:attribute name="opportunity" type="Opportunity"/>
 <!--On Load action which redirects to Standard Create Quote New page-->
<aura:handler name="init" value="{!this}" action="{!c.doInit}" />    
<div class="exampleHolder">    
<lightning:spinner variant="brand"  size="medium" alternativeText="Loading"/>    
</div>
</aura:component>

CreateQuote.css

.THIS.exampleHolder{
    position: relative;
    display: inline-block;
    margin-top: 100px;
    margin-left: 282px; 
}

CreateQuoteController.js

({
   doInit: function(component, event, helper) {
      //Of lighting Action popup afte 1 second.
      window.setTimeout(
            $A.getCallback(function() {
                $A.get("e.force:closeQuickAction").fire();
            }), 1000 
        );
      console.log('Onload function call V5'); 
      //Server side action call to retrieve opportunity (what id from task).
        var action = component.get("c.getOpportunity");
        action.setParams({"taskid": component.get("v.recordId")});
       // Configure response handler
        action.setCallback(this, function(response) {
            var state = response.getState();
            if(component.isValid() && state === "SUCCESS") {
               //Set return opportunity value to attribute.
                component.set("v.opportunity", response.getReturnValue());
               //Event to call createrecord.
                 var createRecordEvent = $A.get("e.force:createRecord");
               //Set parameters like which object record you want to create,record type id etc.
                  createRecordEvent.setParams({
                     "entityApiName": "Quote",
                      //"recordTypeId": "0120L000000VlevQAC",
                     //Assign all default values.
                      "defaultFieldValues": { 
                          'Name':component.get("v.opportunity.Name"),
                          'OpportunityId':component.get("v.opportunity.Id"),
                          'AccountId':component.get("v.opportunity.AccountId"),
                          'BillingCity':component.get("v.opportunity.Account.BillingCity"),
                          'BillingCountry':component.get("v.opportunity.Account.BillingCountry"),
                          'BillingName':component.get("v.opportunity.Account.Name"),
                          'BillingPostalCode':component.get("v.opportunity.Account.BillingPostalCode"),
                          'BillingState':component.get("v.opportunity.Account.BillingState"),
                          'BillingStreet':component.get("v.opportunity.Account.BillingStreet")
                          
                    }
                  });
                  createRecordEvent.fire();
            } else {
                console.log('Problem getting Case, response state: ' + state);
            }
        });
        $A.enqueueAction(action);
   }
})