Is predicted to encode a protein with the following domains: Protein Red-like; Protein RED, C-terminal; RED-like protein C-terminal region; RED-like, N-terminal; and RED-like protein N-terminal region. Is an ortholog of C. elegans smu-2. In C. elegans, smu-2 is involved in several processes, including mechanosensory behavior; nematode larval development; and regulation of alternative mRNA splicing, via spliceosome.