The domain within your query sequence starts at position 269 and ends at position 340; the E-value for the RPT_1 domain shown below is 3.64e-23.

PEVLPKHVLSGSPEHFQKHRPGGSPEHTRHSGGSPEHLQKHALGGSLEHLPRARGTSPEH
LKQHYGASPDHK

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