Enables identical protein binding activity. Acts upstream of or within several processes, including cell redox homeostasis; negative regulation of male germ cell proliferation; and peptidyl-proline hydroxylation to 4-hydroxy-L-proline. Located in cytosol and endoplasmic reticulum. Is expressed in dorsal root ganglion; embryo; future spinal cord; and spinal cord. Orthologous to human PRDX4 (peroxiredoxin 4). [provided by Alliance of Genome Resources, Apr 2022]