Enables calcium-dependent ATPase activity. Involved in cochlea development and regulation of cytosolic calcium ion concentration. Acts upstream of or within several processes, including animal organ development; cGMP metabolic process; and detection of mechanical stimulus involved in sensory perception of sound. Located in several cellular components, including apical plasma membrane; endoplasmic reticulum; and neuronal cell body. Is expressed in heart; labyrinthine zone; liver; nervous system; and sensory organ. Human ortholog(s) of this gene implicated in autosomal recessive nonsyndromic deafness 12. Orthologous to human ATP2B2 (ATPase plasma membrane Ca2+ transporting 2). [provided by Alliance of Genome Resources, Apr 2022]