May play a role in the spatial distribution of the bacterial microcompartment (BMC) dedicated to 1,2-PD degradation, perhaps being involved in cytoskeleton dynamics. This subunit is directly targeted to the BMC (By similarity). Might bind GTP (Probable). The 1,2-propanediol (1,2-PD) degradation bacterial microcompartment (BMC) concentrates low levels of 1,2-PD catabolic enzymes, concentrates volatile reaction intermediates thus enhancing pathway flux and keeps the level of toxic, mutagenic propionaldehyde low. Polyol metabolism; 1,2-propanediol degradation. Interacts with PduU, probably via the PduU beta-barrel which is predicted by modeling to be on the exterior of the BMC. Probably found on the exterior of the BMC. BMC production is induced by growth on 1,2-PD vitamin B12 medium. Bacterial microcompartments (BMC) 100-200 nm in cross section are formed during aerobic growth on minimal 1,2-PD-B12 or anaerobic growth on 1,2-PD-tetrathionate medium, but not during aerobic growth on glucose, anerobic growth on glucose or pyruvate-tetrathionate (PubMed:10498708). BMCs can constitute up to 10% of total cell protein (PubMed:12923081). Belongs to the EutP/PduV family.