Linker protein which helps to recruit the Rho GTPase-activating protein, pac-1, to adherens junctions. Interacts with pac-1 and jac-1. Expressed in four-cell stage embryos. Mutants are 97% viable. However, the Rho GTPase-activating protein, pac-1, does not localize to adherens junctions. Belongs to the CCDC85 family.