May play a role in somitogenesis. In the late gastrula stage, expression appears in the dorsal presomitic mesoderm and in the first three pairs of nascent somites. Expressed strongly in forming somites and then expression is rapidly down-regulated except in the first somite pair where expression is maintained for a longer period. Also expressed in the presumptive notochord and in the tail bud at the 48 hour larval stage. Expression disappears by the 72 hour stage. The ripply homology domain is required for transcriptional repression. The WRPW motif is required for binding to TLE/GROUCHO proteins. Belongs to the ripply family.