Enables identical protein binding activity. Acts upstream of or within several processes, including natural killer cell mediated cytotoxicity; regulation of intracellular signal transduction; and removal of superoxide radicals. Located in mitochondrion and myelin sheath. Is expressed in several structures, including alimentary system; central nervous system; metanephros; respiratory system; and sensory organ. Human ortholog(s) of this gene implicated in methylmalonic aciduria and homocystinuria type cblC. Orthologous to human PRDX1 (peroxiredoxin 1). [provided by Alliance of Genome Resources, Apr 2022]