Plays a role in regulating membrane trafficking of cargo proteins during embryogenesis (PubMed:22100064, PubMed:30213940). Regulates snx-3 retromer-mediated endosomal sorting of mig-14, a transporter of Wnt egl-20 morphogen (PubMed:30213940). Together with mon-2 and pad-1, may participate in the formation of endosomal carriers that direct mig-14 trafficking back to Golgi, away from lysosomal degradation. Required for Wnt egl-20 gradient formation along the anteroposterior body axis and migration of QL neuroblast descendants toward the posterior part (PubMed:30213940). Maintains phosphatidylethanolamine (PE) asymmetry at the plasma membrane and prevents the budding of ectosome vesicles that affect intercellular communication and morphogenesis (PubMed:22100064). ATP + H2O + phospholipidSide 1 = ADP + phosphate + phospholipidSide 2. Produced by alternative promoter usage and alternative splicing. Produced by alternative splicing. Belongs to the cation transport ATPase (P-type) (TC 3.A.3) family. Type IV subfamily.