Involved in Cu(+) export (By similarity). Probably also encodes a cytoplasmic copper chaperone CopA(Z) that is produced by programmed ribosomal frameshifting (Probable). ATP + Cu(+)(in) + H2O = ADP + Cu(+)(out) + H(+) + phosphate Expression of the CopA(Z) soluble copper chaperone isoform requires a -1 programmed ribosomal frameshift (PRF) at the 70th codon. A nucleotide 'slippery sequence' that promotes PRF is found just downstream of the frameshifted site. Belongs to the cation transport ATPase (P-type) (TC 3.A.3) family. Type IB subfamily.