Predicted to enable mRNA binding activity and translation repressor activity. Predicted to be involved in negative regulation of translation and oogenesis. Predicted to act upstream of or within regulation of translation. Located in germ plasm and perinuclear region of cytoplasm. Is expressed in blastomere; cerebellum; hindbrain; midbrain hindbrain boundary; and primordial germ cell. Human ortholog(s) of this gene implicated in spermatogenic failure 12. Orthologous to human NANOS1 (nanos C2HC-type zinc finger 1).