Predicted to enable ATP hydrolysis activity; ATPase-coupled intramembrane lipid transporter activity; and ion binding activity. Predicted to be involved in phospholipid transport. Predicted to be located in membrane. Is an ortholog of C. elegans tat-1. In C. elegans, tat-1 is involved in several processes, including lysosome organization; phospholipid translocation; and regulation of phagocytosis, engulfment.