The domain within your query sequence starts at position 644 and ends at position 705; the E-value for the RPT_2 domain shown below is 6.15e-5.

PTNQVEVKEEAKSNSPVSEKPDPTPAKDKASPEPEKDFVEKAKPSPHPTKDKLKGKDETD
SP

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