label: glucuronylgalactosylproteoglycan 4-beta-N-acetylgalactosaminyltransferase activity
label_lc: glucuronylgalactosylproteoglycan 4-beta-n-acetylgalactosaminyltransferase activity
description: "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."