Reaction catalyzed by 3-galactosyl-N-acetylglucosaminide 4-alpha-L-fucosyltransferase (2.4.1.65)

		+			=			+
	GDP-L-fucose	+		Galbeta(1,3)GlcNAcbeta(1,3)Galbeta(1,4)Glc	=		GDP	+		Galbeta(1,3)(Fucalpha(1,4))GlcNAcbeta(1,3)Galbeta(1,4)Glc