Predicted to enable enzyme regulator activity. Predicted to be involved in several processes, including negative regulation of ATPase-coupled calcium transmembrane transporter activity; positive regulation of cold-induced thermogenesis; and sarcoplasmic reticulum calcium ion transport. Predicted to act upstream of or within negative regulation of calcium ion binding activity. Predicted to be located in sarcoplasmic reticulum membrane. Orthologous to human SLN (sarcolipin). [provided by Alliance of Genome Resources, Apr 2022]