Predicted to enable DNA-directed 5'-3' RNA polymerase activity; protein dimerization activity; and sodium channel activity. Predicted to be involved in DNA-templated transcription; lipid metabolic process; and sodium ion transport. Predicted to be located in membrane. Is an ortholog of C. elegans fat-1 and fat-2. In C. elegans, fat-1 is involved in positive regulation of locomotion and unsaturated fatty acid biosynthetic process.