Plays an essential role in heart function and development by regulating the organization and function of the sarcoplasmic reticulum in cardiomyocytes.
Subcellular locations: Endoplasmic reticulum membrane, Sarcoplasmic reticulum membrane
Localizes to endoplasmic reticulum tubular network. In cardiomyocytes, localizes to the junctional sarcoplasmic reticulum membrane which is closely tethered to the cell membrane and contractile machinery.