Predicted to enable P-type sodium:potassium-exchanging transporter activity. Acts upstream of or within locomotory behavior and ventricular system development. Predicted to be located in membrane. Predicted to be active in plasma membrane. Is expressed in nervous system; neural tube; pronephric duct; and skeletal system. Human ortholog(s) of this gene implicated in alternating hemiplegia of childhood; bipolar disorder; developmental and epileptic encephalopathy 99; dystonia 12; and epilepsy. Orthologous to human ATP1A3 (ATPase Na+/K+ transporting subunit alpha 3).