The domain within your query sequence starts at position 713 and ends at position 769; the E-value for the RPT_5 domain shown below is 4.35e-6.

GEQGPQGFPGSKGTVGLGLPGQKGEHGDRGDVGRKGEKGETGEPGSPGKQGLQGPKG

This is a significant internal repeat in the query protein sequence, as detected by the Prospero program.