$50 NL - AK on the button

[jcm4ccc]

I'm a tournament player, trying to learn how to play cash.

this hand was an early hand. Stacks are about $50 each. I am dealt AK on the button. CO makes a standard 4X bb raise. I make a standard reraise. The blinds fold, CO pushes all in.

In the donk tournaments that I play, this is an easy call, as AQ, AJ or even worse is in the CO's range (the donks usually think you are making a move in LP -- they rarely give you credit for a hand). For cash, I didn't know. Call or fold? I imagine there is a standard answer -- I just don't know what it is.