Automated description from the Alliance of Genome Resources (Release 7.0.0)
Enables enzyme activator activity. Involved in positive regulation of calcium ion import into sarcoplasmic reticulum; positive regulation of cardiac muscle cell contraction; and regulation of slow-twitch skeletal muscle fiber contraction. Acts upstream of or within positive regulation of calcium ion import. Located in sarcoplasmic reticulum membrane. Orthologous to human STRIT1 (small transmembrane regulator of ion transport 1).