Component of SCF(ASK-cullin-F-box) E3 ubiquitin ligase complexes, which may mediate the ubiquitination and subsequent proteasomal degradation of target proteins. Promotes the senescence. Is necessary for responses to strigolactones and karrikins. Contributes to the selective repression of axillary shoots and moderates the branching by regulating negatively the auxin transport in primary stems, in an AXR1-independent manner (PubMed:11487692, PubMed:11874909, PubMed:15737939, PubMed:16546078, PubMed:22357928, PubMed:9351240). Required for the progression of leaf senescence mediated by methyl jasmonate (PubMed:26507893). Required at each node to suppress axillary bud growth (PubMed:17346265). Protein modification; protein ubiquitination. Part of a SCF (SKP1-cullin-F-box) protein ligase complex (PubMed:11487692, PubMed:17346265). Interacts with SKP1A/ASK1 (PubMed:11487692, PubMed:17346265). Interacts with CUL1 (PubMed:17346265). Interacts with SMXL6, SMXL7 and SMXL8 (PubMed:26546446). Interacts with D14. Forms a complex with D14 and SKP1A/ASK1 in presence of strigolactone (PubMed:27479325). Expressed in the vasculature of growing leaves and roots, rosette axillary bud, flowers, siliques, funiculi and stems. Up-regulated upon binding of EIN3 to the promoter during methyl jasmonate-induced leaf senescence. The F-box domain (1-55) is required for activity of the protein and for the interaction with SKP1A/ASK1. 'Oresara' means 'long living' in Korean.