May function as adapter protein. Involved in the formation of clusters of actin bundles. Plays a role in the reorganization of the actin cytoskeleton in response to bacterial infection (By similarity). Interacts with RAC1. Binds to F-actin. Interacts with FASLG (By similarity). Recruited to actin pedestals that are formed upon infection by bacteria at bacterial attachment sites. Detected in bladder, liver, testes, heart, lung, spleen, brain and skeletal muscle (at protein level). The IMD domain is predicted to have a helical structure. It may induce actin bundling and filopodia formation (By similarity). Phosphorylated on tyrosine in response to insulin.