Component of SCF(ASK-cullin-F-box) E3 ubiquitin ligase complexes, which may mediate the ubiquitination and subsequent proteasomal degradation of target proteins. Is necessary for responses to strigolactones and may be involved in the ubiquitin-mediated degradation of specific proteins that activate axillary growth (By similarity). Part of a putative SCF (SKP1/Cullin/F-box) ubiquitin ligase complex (By similarity). Interacts with DAD2. Expressed in lateral roots, internodes, nodes, fully expanded leaves, axillary and shoot apex. Increased shoot branching.