The domain within your query sequence starts at position 842 and ends at position 958; the E-value for the RPT_2 domain shown below is 6.03e-6.

QAKGESTSGNGAAEKKNWGEGAGEDCRKLQRPRRKDQRLRLGEVDGKTYQLEWKNQENFR
DGNDADIQKQGKRNPLCFTGDDGSDTRASVGEDQRQSVCETDEKSQTPGQRNQGKRR

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