Predicted to enable actin filament binding activity. Involved in several processes, including axon development; semaphorin-plexin signaling pathway; and uterus morphogenesis. Located in actin filament. Expressed in body wall musculature; gonad; hypodermis; intestine; and vulval muscle. Human ortholog(s) of this gene implicated in several diseases, including X-linked recessive disease (multiple); bone development disease (multiple); distal muscular dystrophy 4; and heart valve disease (multiple). Is an ortholog of human FLNB (filamin B) and FLNC (filamin C).