Component of the eukaryotic translation initiation factor 3 (eIF-3) complex, which is involved in protein synthesis of a specialized repertoire of mRNAs and, together with other initiation factors, stimulates binding of mRNA and methionyl-tRNAi to the 40S ribosome. The eIF-3 complex specifically targets and initiates translation of a subset of mRNAs involved in cell proliferation (Potential). Required for maintaining the basal level of atf1 and for transcriptional activation of core environmental stress response genes (CESR genes) in response to histidine starvation (PubMed:18502752). May positively regulate proteasome activity (PubMed:12553909). Required for nuclear localization of the proteasome subunit rpn501/rpn502 (PubMed:12553909). Component of the eukaryotic translation initiation factor 3 (eIF-3) complex. The eIF-3 complex appears to include tif32/eif3a, SPAC25G10.08/eif3b, tif33/eif3c, SPBC4C3.07/eif3f, tif35/eif3g and sum1/eif3i. This set of common subunits may also associate exclusively with either moe1/eif3d and int6/eif3e, or with SPAC821.05/eif3h and SPAC1751.03/eif3m. The eIF-3 complex may also include SPAC3A12.13c/eif3j. Also interacts with the proteasome via rpn501/rpn502. Slow growth, reduced polysome content and reduced translational initiation in minimal medium. Mislocalization of proteasome subunits to the cytoplasm and impaired proteasome assembly, leading to the accumulation of polyubiquitinated proteins including cut2 and cdc13. Impaired mitosis and spore formation. Enhanced sensitivity to 3-aminotriazole (3AT), caffeine and thiabendazole. Belongs to the eIF-3 subunit E family.