Component of the nuclear tRNA export machinery that my collect tRNA from the nuclear tRNA export receptors of the aminoacylation-dependent export and may deliver aminoacylated tRNAs to the translation machinery pathway at the nuclear pore complex. Associates with the nuclear pore complex (NPC). Interacts with GSP1, LOS1, MSN5, NUP116 and TEF2. Present with 1360 molecules/cell in log phase SD medium.