Predicted to enable transferase activity, transferring alkyl or aryl (other than methyl) groups. Predicted to contribute to dehydrodolichyl diphosphate synthase activity. Acts upstream of or within detection of light stimulus involved in visual perception and eye photoreceptor cell development. Predicted to be part of dehydrodolichyl diphosphate synthase complex. Predicted to be active in endoplasmic reticulum. Human ortholog(s) of this gene implicated in developmental delay and seizures with or without movement abnormalities and retinitis pigmentosa 59. Orthologous to human DHDDS (dehydrodolichyl diphosphate synthase subunit).