Involved in copper export. ATP + Cu(2+)(in) + H2O = ADP + Cu(2+)(out) + H(+) + phosphate Activated by Cu(2+) and to a lesser extent by Ag(+) and Cu(+). Optimum pH is 5.7. Optimum temperature is 85 degrees Celsius. The histidine-N-terminal metal-binding domain (His-N-MBD) seems to have a regulatory role affecting the metal transport rate by controlling the metal release/dephosphorylation rates. Belongs to the cation transport ATPase (P-type) (TC 3.A.3) family. Type IB subfamily.