Term Name:	glucuronylgalactosylproteoglycan 4-beta-N-acetylgalactosaminyltransferase activity
Synonyms:	glucuronylgalactosylproteoglycan beta-1,4-N-acetylgalactosaminyltransferase activity, N-acetylgalactosaminyltransferase I activity, UDP-N-acetyl-D-galactosamine:D-glucuronyl-1,3-beta-D-galactosyl-proteoglycan beta-1,4-N-acetylgalactosaminyltransferase activity, uridine diphosphoacetylgalactosamine-chondroitin acetylgalactosaminyltransferase I, uridine diphosphoacetylgalactosamine-chondroitinacetylgalactosaminyltransferase I activity
Definition:	Catalysis of the reaction: D-glucuronyl-1,3-beta-D-galactosylproteoglycan + UDP-N-acetylgalactosamine = N-acetyl-D-galactosaminyl-1,4-beta-D-glucuronyl-1,3-beta-D-galactosylproteoglycan + UDP.
Ontology:	GO: Molecular Function [GO:0047237]    QuickGO    AmiGO