Predicted to enable RNA binding activity. Involved in fertilization; gamete generation; and piRNA metabolic process. Acts upstream of or within negative regulation of transposition. Located in nucleus and piP-body. Is expressed in germ cell of testis. Human ortholog(s) of this gene implicated in spermatogenic failure 30. Orthologous to human TDRD9 (tudor domain containing 9). [provided by Alliance of Genome Resources, Apr 2022]