Predicted to act upstream of or within several processes, including axonemal central apparatus assembly; trachea development; and ventricular system development. Predicted to be located in axonemal central pair projection. Human ortholog(s) of this gene implicated in primary ciliary dyskinesia 5. Orthologous to human HYDIN (HYDIN axonemal central pair apparatus protein). [provided by Alliance of Genome Resources, Apr 2022]