The domain within your query sequence starts at position 231 and ends at position 341; the E-value for the RPT_1 domain shown below is 1.6e-13.

EVNEAATEQASVQAVREAATRPAPGKVRKAATQPAPVQVCQEATQLAPVKVREAATQPAS
GKVREAATQLAPVKVRKAATQLAPVKVHEAATQPAPGKVSDAATQSASVQE

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