Predicted to be involved in positive regulation of protein localization to plasma membrane; positive regulation of voltage-gated calcium channel activity; and skeletal muscle contraction. Predicted to be located in sarcolemma. Predicted to be extrinsic component of cytoplasmic side of plasma membrane. Orthologous to human STAC2 (SH3 and cysteine rich domain 2). [provided by Alliance of Genome Resources, Apr 2022]