Catalytic component of P4-ATPase flippase complex, which catalyzes the hydrolysis of ATP coupled to the transport of phosphatidylcholine (PC) from the outer to the inner leaflet of the plasma membrane. Initiates inward plasma membrane bending and recruitment of Bin/amphiphysin/Rvs (BAR) domain-containing proteins involved in membrane tubulation and cell trafficking. Facilitates ITGB1/beta1 integrin endocytosis, delaying cell adhesion and cell spreading on extracellular matrix. Has low flippase activity toward glucosylceramide (GlcCer). ATP + H2O + phospholipidSide 1 = ADP + phosphate + phospholipidSide 2. a 1,2-diacyl-sn-glycero-3-phosphocholine(out) + ATP + H2O = a 1,2-diacyl-sn-glycero-3-phosphocholine(in) + ADP + H(+) + phosphate a beta-D-glucosyl-(1<->1')-N-acylsphing-4-enine(out) + ATP + H2O = a beta-D-glucosyl-(1<->1')-N-acylsphing-4-enine(in) + ADP + H(+) + phosphate Component of a P4-ATPase flippase complex which consists of a catalytic alpha subunit ATP10A and an accessory beta subunit TMEM30A. Exit from the endoplasmic reticulum requires the presence of TMEM30A, but not that of TMEM30B. Found in testis and in white adipose tissue. Also detected in fetal tissues. Autophosphorylated at the conserved aspartate of the P-type ATPase signature sequence. Belongs to the cation transport ATPase (P-type) (TC 3.A.3) family. Type IV subfamily.