peptidoglycan glycosyltransferase activity
undecaprenyldiphospho-N-acetyl-D-glucosaminyl-(1->4)-(N-acetyl-D-muramoylpentapeptide):undecaprenyldiphospho-(N-acetyl-D-glucosaminyl-(1->4)-N-acetyl-D-muramoylpentapeptide) disaccharidetransferase activity