Downstream effector protein for Rho-type small GTPases that plays a role in cell polarity and directional migration (PubMed:27807006). Acts as an adapter protein, linking active Rho proteins to STK24 and STK26 kinases, and hence positively regulates Golgi reorientation in polarized cell migration upon Rho activation (PubMed:27807006). Involved in the subcellular relocation of STK26 from the Golgi to cytoplasm punctae in a Rho- and PDCD10-dependent manner upon serum stimulation (PubMed:27807006). Interacts (via N-terminus) with RHOA (GTP-bound form); this interaction links active RHOA to STK24 and STK26 kinases (PubMed:27807006). Interacts with RHOB (PubMed:27807006). Interacts with RHOC (PubMed:27807006). Interacts (via C-terminus) with PDCD10; this interaction occurs in a Rho-independent manner (PubMed:27807006). Interacts (via C-terminus) with STK24; this interaction occurs in a PDCD10-dependent and Rho-independent manner (PubMed:27807006). Interacts (via C-terminus) with STK26; this interaction occurs in a PDCD10-dependent and Rho-independent manner (PubMed:27807006). Interacts (via N-terminus) with 14-3-3 proteins; these interactions occur in a Rho-dependent manner (PubMed:27807006). Localizes to the podocyte major processes and cell body (By similarity). Colocalized with STK26 in the Golgi of serum-starved cells and relocated to cytoplasmic punctae, probably vesicular compartments, along with STK26 upon serum stimulation in a Rho- and PDCD10-dependent manner (PubMed:27807006). Belongs to the RIPOR family. Truncated C-terminus.