Reaction catalyzed by 3D-(3,5/4)-trihydroxycyclohexane-1,2-dione acylhydrolase (ring-opening) (3.7.1.22)

		+		H2O	=
	3D-3,5/4-trihydroxycyclohexa-1,2-dione	+		H2O	=		5-deoxy-D-glucuronate