Orphan nuclear receptor. Binds to a response element containing the sequence 5'-TCAAGGTCA-3'. May be involved in the regulation of gene expression in germ cell development during gametogenesis (By similarity). Homodimer. Interacts with UIMC1 (By similarity). Shows highest expression in the germ cells of the adult testis. Belongs to the nuclear hormone receptor family. NR6 subfamily.