Predicted to enable GTPase inhibitor activity and small GTPase binding activity. Predicted to be involved in negative regulation of catalytic activity and visual perception. Predicted to be located in cytoplasmic vesicle and cytosol. Predicted to be active in cytoplasm. Human ortholog(s) of this gene implicated in Joubert syndrome 22. Orthologous to human PDE6D (phosphodiesterase 6D). [provided by Alliance of Genome Resources, Apr 2022]