Reaction catalyzed by endo-alpha-N-acetylgalactosaminidase (3.2.1.97)

		+		H2O	=			+
	beta-D-galactosyl-(1->3)-N-acetyl-alpha-D-galactosaminyl-[glycoprotein]-L-serine/L-threonine	+		H2O	=		beta-D-galactosyl-(1->3)-N-acetyl-D-galactosamine	+		[glycoprotein]-L-serine/L-threonine