Interacts with DRE-binding factor Dref. Expressed at high levels in unfertilized eggs, early embryos, pupae and adult males while a low level expression is found in adult females and larvae. High levels are seen in unfertilized eggs and expression increases slightly during early embryo stages (2-3 hours). Levels are high in embryos until 4 hours after fertilization and then decrease gradually through embryonic and larval stages. Belongs to the MLF family.