So, if I understand correctly you have an Android application (.apk) that you want to port to BlackBerry 10?
There are several ways to port to BlackBerry 10 from Android. The different ways are explained on the following site: https://developer.blackberry.com/android/tools/ Have a look at that site to find out which of the tools fits best for your needs.
If you wander into some problems, you just let us know.
A like is always appreciated, but a nomination for BB Elite even more :-) You can also contact me on Twitter: @ndsmyter