Expressed mainly in the low bolt. Circadian-regulation (PubMed:24442277). Down-regulated in axillary buds within 24 hours after decapitation and then up-regulated (PubMed:15908603). Down-regulated by the transcription factor ERF114 (PubMed:23616605). Down-regulated by heat (PubMed:24442277). Up-regulated by salt, cold and dark growth conditions (PubMed:24442277). No visible phenotype. Drm1 and drmh1 double mutants have no visible phenotype. Predicted to be an intrinsically disordered protein. Belongs to the DRM1/ARP family.