Catalysis of the transfer of a solute or solutes from one side of a membrane to the other according to the reaction: ATP + H2O + nitrate(out) = ADP + phosphate + nitrate(in).
Catalysis of the transfer of a solute or solutes from one side of a membrane to the other according to the reaction: ATP + H2O + nitrate(out) = ADP + phosphate + nitrate(in).