Automated description from the Alliance of Genome Resources (Release 4.0)
Exhibits several functions, including ATPase binding activity; ion channel binding activity; and potassium channel regulator activity. Involved in several processes, including positive regulation of ion transmembrane transporter activity; regulation of cardiac muscle cell action potential; and regulation of heart contraction. Localizes to several cellular components, including T-tubule; intercalated disc; and myofibril. Is expressed in central nervous system; eye; genitourinary system; and heart. Used to study sinoatrial node disease. Human ortholog(s) of this gene implicated in ankyrin-B-related cardiac arrhythmia; atrial fibrillation; long QT syndrome; and sick sinus syndrome. Orthologous to human ANK2 (ankyrin 2).