Reaction catalyzed by keratan-sulfate endo-1,4-beta-galactosidase (3.2.1.103)

		+		H2O	=			+
	Galbeta1-3[Fucalpha1-4]GlcNAcbeta1-3Galbeta1-4Glc-Cer	+		H2O	=		Galbeta1-3[Fucalpha1-4]GlcNAcbeta1-3Gal	+		Glc-Cer