Predicted to enable ATPase activator activity and P-type potassium:proton transporter activity. Predicted to contribute to heterocyclic compound binding activity. Predicted to be involved in intracellular monoatomic cation homeostasis; monoatomic cation transmembrane transport; and pH reduction. Pre
dicted to act upstream of or within protein glycosylation and regulation of proton transport. Predicted to be located in endoplasmic reticulum and plasma membrane. Predicted to be part of potassium:proton exchanging ATPase complex and sodium:potassium-exchanging ATPase complex. Is expressed in alimentary system; stomach; stomach epithelium; stomach fundus; and stomach mucosa. Human ortholog(s) of this gene implicated in atrophic gastritis; autoimmune gastritis; and stomach cancer. Orthologous to human ATP4B (ATPase H+/K+ transporting subunit beta). [provided by Alliance of Genome Resources, Jul 2025]
This gene encodes an integral membrane protein that comprises a subunit of an ATP-metabolizing enzyme responsible for transporting sodium and potassium ions across the plasma membrane. This enzyme regulates the electrochemical gradient of these ions in cells, and plays a central role in osmoregulati
on and signal transmission in nerves and muscles, among other biological processes. The encoded protein is the non-catalytic beta subunit; it works together with a catalytic alpha subunit and a gamma subunit. [provided by RefSeq, Mar 2013]