Term Name:	beta-1,3-galactosyl-O-glycosyl-glycoprotein beta-1,3-N-acetylglucosaminyltransferase activity
Synonyms:	elongation 3-beta-GalNAc-transferase activity, elongation 3beta-GalNAc-transferase activity, O-glycosyl-oligosaccharide-glycoprotein N-acetylglucosaminyltransferase II activity, UDP-N-acetyl-D-glucosamine:O-glycosyl-glycoprotein (N-acetyl-D-glucosamine to -D-galactose of beta-D-galactosyl-1,3-(N-acetyl-D-glucosaminyl-1,6)-N-acetyl-D-galactosaminyl-R) beta-1,3-N-acetyl-D-glucosaminyltransferase activity, uridine diphosphoacetylglucosamine-mucin beta(1->3)-acetylglucosaminyltransferase (elongating)
Definition:	Catalysis of the reaction: beta-D-galactosyl-1,3-(N-acetyl-D-glucosaminyl-1,6)-N-acetyl-D-galactosaminyl-R + UDP-N-acetyl-D-glucosamine = N-acetyl-beta-D-glucosaminyl-1,3-beta-D-galactosyl-1,3-(N-acetyl-beta-D-glucosaminyl-1,6)-N-acetyl-D-galactosaminyl-R + UDP.
Ontology:	GO: Molecular Function [GO:0047223]    QuickGO    AmiGO