Enables ankyrin binding activity; calcium:sodium antiporter activity; and transmembrane transporter binding activity. Involved in several processes, including cellular response to caffeine; metal ion transport; and negative regulation of cytosolic calcium ion concentration. Acts upstream of or within several processes, including embryonic organ development; metal ion transport; and negative regulation of protein serine/threonine kinase activity. Located in several cellular components, including T-tubule; basolateral plasma membrane; and postsynaptic density. Is expressed in several structures, including alimentary system; central nervous system; genitourinary system; heart; and nose. Human ortholog(s) of this gene implicated in hypertension. Orthologous to human SLC8A1 (solute carrier family 8 member A1). [provided by Alliance of Genome Resources, Apr 2022]