Substrate recognition component of a SCF-like E3 ubiquitin-protein ligase complex that promotes target-directed microRNA degradation (TDMD), a process that mediates degradation of microRNAs (miRNAs) (PubMed:33184237). The SCF-like E3 ubiquitin-protein ligase complex acts by catalyzing ubiquitination and subsequent degradation of AGO1, thereby exposing miRNAs for degradation (By similarity). Protein modification; protein ubiquitination. Component of the SCF-like E3 ubiquitin-protein ligase complex. Belongs to the ZSWIM8 family. Truncated N-terminus.