heparan sulfate N-sulfotransferase activity
heparan sulfate n-sulfotransferase activity
Catalysis of the reaction: 3'-phosphoadenylyl sulfate + alpha-D-glucosaminyl-[heparan sulfate](n) = adenosine 3',5'-bisphosphate + 2 H+ + N-sulfo-alpha-D-glucosaminyl-[heparan sulfate](n).