It catalyses the hydrolysis of terminal non-reducing N-acetyl-D-glucosamine residues in N-acetyl-α-D-glucosaminides, and also UDP-N-acetylglucosamine.
This enzyme breaks down the terminal non-reducing N-acetyl-D-glucosamine parts in N-acetyl-α-D-glucosaminides, as well as UDP-N-acetylglucosamine.