This is a juniper. Give it sun, and don't let it dry out or get too wet. in spring you should repot into better soil. You won't want to prune much on it for now. I would also not wire either as that tree is most likely not tied into the pot well enough for that. I don't know the protocol for winters though, as I don't get freezing temps here. Welcome, good luck, and get more trees!
Cheers