May constitute a glutathione peroxidase-like protective system against oxidative stresses. 2 glutathione + H2O2 = glutathione disulfide + 2 H2O Interacts with DJ1A. Expressed in leaves, stems, flowers, green siliques and roots. By salt stress and metals. Up-regulated by salicylic acid (SA). Belongs to the glutathione peroxidase family.