N-acetyltransferase activity heparan-alpha-glucosaminide N-acetyltransferase activity https://github.com/geneontology/go-ontology/issues/29323 Reactome:R-HSA-1678660 heparin-alpha-glucosaminide N-acetyltransferase activity Reactome:R-HSA-9036056 acetyl-CoA:heparan-alpha-D-glucosaminide N-acetyltransferase activity EC:2.3.1.78 acetyl-CoA:alpha-glucosaminide N-acetyltransferase activity Catalysis of the reaction: alpha-D-glucosaminyl-[heparan sulfate](n) + acetyl-CoA = N-acetyl-alpha-D-glucosaminyl-[heparan sulfate](n) + CoA + H+. molecular_function Reactome:R-HSA-2090085 GO:0015019 Reactome:R-HSA-2263492 MetaCyc:2.3.1.78-RXN RHEA:15125