Predicted to enable lipid binding activity. Predicted to be involved in multi-organism membrane organization; neuromuscular synaptic transmission; and positive regulation of actin filament polymerization. Predicted to be located in cell projection. Predicted to be active in neuromuscular junction and recycling endosome. Predicted to colocalize with cuticular plate. Orthologous to human FCHSD1 (FCH and double SH3 domains 1). [provided by Alliance of Genome Resources, Apr 2022]