ES6 imports w/ ES5 Angular service

index.js

import SampleModule from 'modules/some.module';

angular.module('main-app', [SampleModule])
  .run();

some.module.js

import sampleService from 'services/some.service';

export default angular.module('some-module', [])
  .service('sampleService', sampleService)
  .name;

some.service.js

export default function sampleService ($q) {
    this.sampleServiceValue = 'sampleServiceValue';
};

sampleService.$inject = ['$q'];