Predicted to be a structural constituent of eye lens. Predicted to be involved in lens development in camera-type eye and visual perception. Is expressed in lens. Human ortholog(s) of this gene implicated in cataract; cataract 2 multiple types; cataract 39 multiple types; cataract 4 multiple types; and cataract 7. Orthologous to several human genes including CRYGA (crystallin gamma A); CRYGB (crystallin gamma B); and CRYGC (crystallin gamma C).