Is predicted to encode a protein with the following domains: Ankyrin repeat; Ankyrin repeat-containing domain superfamily; and SET domain. Is an ortholog of C. elegans met-1 and members of the C. elegans mes and set gene classes including mes-4 and set-25. In C. elegans, lin-59 is involved in several processes, including ectodermal cell fate specification; egg-laying behavior; and nematode male tail tip morphogenesis.