Other than saving a few lines of code, there isn't any reason for this. It would either do too little to be very useful, or so much that it would slow things down.

Write a c-script function: function turn_to_ent(ENTITY* ent) and call it as needed. 8 lines of code for the function, 1 line of code to call it (3-4 if you want it to update it each frame).