Probably involved in copper import under copper limiting conditions. ATP + Cu(+)(in) + H2O = ADP + Cu(+)(out) + H(+) + phosphate Inhibited by vanadate. Optimum pH is 6.25. Monomer. Interacts with the copper chaperone CopZ. By copper and silver. Belongs to the cation transport ATPase (P-type) (TC 3.A.3) family. Type IB subfamily.