is there any tools for get Entrez id and gene symbol for multiple transcriptome sequences

Question

[Kurban]

hello all, i have several hundred de novo assembled sequences with no further information, can i get their closest homologous gene ids from ncbi and gene symbols, is there any tools to do that other than a downloading all the ncbi nr data to server and blasting.i used blast2go, but it gives sequences definition. i wanna get sequences id or gene symbol to do the further analysis like using Bingo.