Enables the transfer of a solute or solutes from one side of a membrane to the other according to the reaction: ATP + H2O + arsenite(in) = ADP + phosphate + arsenite(out).
Comment:
EC:7.3.2.7 states that this bacterial transporter does not belong to the ABC superfamily, and instead is a member of its own family, referred to as the Ars family. Like ABC transporters, it contains two nucleotide binding sites (PMID:10970874).