tRNA nucleus export receptor which facilitates tRNA translocation across the nuclear pore complex. Preferentially interacts with tRNAs with mature 5'- and 3'-termini and does not distinguish between intron-containing and spliced tRNAs. In the nucleus binds to tRNA and to the Ran-GTPases GSP1 or GSP2 in their active GTP-bound form. Docking of this trimeric complex to the nuclear pore complex (NPC) is mediated through binding to nucleoporins. Upon transit of a nuclear export complex into the cytoplasm, disassembling of the complex and hydrolysis of Ran-GTP to Ran-GDP cause release of the tRNA from the export receptor. The directionality of nuclear export is thought to be conferred by an asymmetric distribution of the GTP- and GDP-bound forms of Ran between the cytoplasm and nucleus. Interacts with CEX1, GSP1, GSP2, NSP1, NUP2 and UTP8. Shuttles between the nucleus and the cytoplasm and the localization is regulated by SNF1 kinase, nutrient supply and stress. Leads to the accumulation of pre-tRNAs. Present with 3490 molecules/cell in log phase SD medium. Belongs to the exportin family. Has been originally identified as involved in pre-tRNA splicing since its deletion accumulates pre-tRNAs (PubMed:7363329, PubMed:3031485). However, further studies have shown that it is actually a nuclear pore protein involved in transport of pre-tRNAs and mature tRNAs (PubMed:9774653).