Enables P-type sodium:potassium-exchanging transporter activity and phosphatase activity. Acts upstream of or within several processes, including negative regulation of glucocorticoid biosynthetic process; positive regulation of striated muscle contraction; and regulation of heart contraction. Located in several cellular components, including T-tubule; basolateral plasma membrane; and postsynaptic density. Is expressed in several structures, including alimentary system; brain; genitourinary system; respiratory system; and sensory organ. Human ortholog(s) of this gene implicated in Charcot-Marie-Tooth disease type 2DD. Orthologous to human ATP1A1 (ATPase Na+/K+ transporting subunit alpha 1). [provided by Alliance of Genome Resources, Apr 2022]