The domain within your query sequence starts at position 635 and ends at position 696; the E-value for the RPT_2 domain shown below is 6.45e-5.

PTNQVEVKEEAKSNSPVSEKPDPTPAKDKASPEPEKDFVEKAKPSPHPTKDKLKGKDETD
SP

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