The protein encoded by this gene is a component of the excitation-contraction coupling machinery of muscles. This protein is a member of the Stac gene family and contains an N-terminal cysteine-rich domain and two SH3 domains. Mutations in this gene are a cause of Native American myopathy. [provided by RefSeq, Nov 2013],similarity:Contains 1 phorbol-ester/DAG-type zinc finger.,similarity:Contains 2 SH3 domains.,
