May play a key role in embryonic cellularization by interacting with both the cytoskeleton and other cellular components. Alternatively, it may play a structural role in indirect flight muscle. Vital for embryonic development. Found in ovaries, larval fat bodies, brain and adult thorax. Expressed both maternally and zygotically. Consists of a leucine-rich N-terminal half, which is likely to be involved in protein-protein interaction, and a C-terminal half which has high sequence similarity to gelsolin and is therefore likely to be involved in actin-binding. Belongs to the villin/gelsolin family.