Plays a role as a glutathione (GSH)-dependent antioxidant. May be involved in a redox-related process. May play a role in the myopathies of selenium deficiency (By similarity).
Subcellular locations: Cytoplasm
Highest levels detected in skeletal muscle, tongue, heart and brain. Expressed at significantly higher levels in female skeletal muscle than in male and at slightly higher levels in female cardiac muscle than in male (at protein level). Also detected at low levels in liver.