Reaction catalyzed by beta-N-acetylhexosaminidase (3.2.1.52)

	(N-acetyl-beta-D-glucosamine)5	+		H2O	=		(N-acetyl-beta-D-glucosamine)4	+
	(N-acetyl-beta-D-glucosamine)5	+		H2O	=		(N-acetyl-beta-D-glucosamine)4	+		N-acetyl-beta-D-glucosamine