Thiol-specific peroxidase that catalyzes the reduction of hydrogen peroxide and organic hydroperoxides to water and alcohols, respectively. Plays a role in cell protection against oxidative stress by detoxifying peroxides. Acts synergistically with MAP3K13 to regulate the activation of NF-kappa-B in the cytosol (By similarity). Required for the maintenance of physical strength (By similarity).
Subcellular locations: Mitochondrion, Cytoplasm, Early endosome
Localizes to early endosomes in a RPS6KC1-dependent manner.