So there's a carboxylic, carbonyl and ammonia group?
As Borek has said, the whole thing is a functional group with its own name. Perhaps look up the names and structures of carboxylic acid derivatives.
Also, as an aside, carbonyl groups are typically considered features of larger functional groups (ketones, aldehydes, etc). As well, ammonia is not a functional group, but a compound - NH3. This would be a type of amine, which is the name for the functional group.