Involved in sperm axoneme assembly. Located in cytoplasm and sperm flagellum. Is expressed in lateral ventricle choroid plexus; lung; and metencephalon part of 4th ventricle choroid plexus. Used to study spermatogenic failure 40. Human ortholog(s) of this gene implicated in spermatogenic failure 40. Orthologous to human CFAP65 (cilia and flagella associated protein 65). [provided by Alliance of Genome Resources, Apr 2022]