Predicted to enable olfactory receptor binding activity. Predicted to be involved in defense response to virus; detection of chemical stimulus involved in sensory perception of bitter taste; and establishment of protein localization to membrane. Predicted to be located in membrane. Predicted to be integral component of membrane. Predicted to be active in cytoplasm. Orthologous to human RTP4 (receptor transporter protein 4). [provided by Alliance of Genome Resources, Apr 2022]