May act as a scaffolding protein within caveolar membranes, functionally participating in formation of caveolae or caveolae-like vesicles (By similarity). May be involved in nodule formation. Expressed in all plant organs. Primarily expressed in vascular tissues. No change in spatial expression in root upon inoculation. Expression limited to the nodule vascular tissue. Not induced during nodulation. May be palmitoylated. Belongs to the band 7/mec-2 family. Flotillin subfamily.