Reaction catalyzed by UDP-N,N'-diacetylbacillosamine 2-epimerase (hydrolysing) (3.2.1.184)

		+		H2O	=			+
	UDP-N,N'-diacetylbacillosamine	+		H2O	=		UDP	+		2,4-diacetamido-2,4,6-trideoxy-D-mannopyranose