Predicted to be involved in meiotic cell cycle and spermatid development. Predicted to be located in nucleoplasm. Predicted to be active in synaptonemal complex. Is expressed in several structures, including brain; hemolymphoid system; hindgut diverticulum; placenta; and yolk sac. Orthologous to human FAM9B (family with sequence similarity 9 member B) and FAM9C (family with sequence similarity 9 member C). [provided by Alliance of Genome Resources, Apr 2022]