WordPress - Re Direct non Admin users to url

add_action( 'admin_init', 'redirect_non_admin_users' );
/**
 * Redirect non-admin users to home page
 *
 * This function is attached to the 'admin_init' action hook.
 */
function redirect_non_admin_users() {
  if ( ! current_user_can( 'manage_options' ) && '/wp-admin/admin-ajax.php' != $_SERVER['PHP_SELF'] ) {
		wp_redirect( home_url() );
		exit;
	}
}