"It looks like my grandmother's house."
Translation:Es sieht aus wie das Haus meiner Großmutter.
What function does "aus" perform here? It has appeared as a function in other constructions in German that I haven't completely grasped. Does it have to do with 'sieht' being 'looks' instead of 'sees' in this example? (Es sieht = it sees vs Es sieht aus = it looks or it appears?)
The verb is "aussehen". "aus" is a separable prefix.