The domain within your query sequence starts at position 1166 and ends at position 1313; the E-value for the RPT_2 domain shown below is 2.88e-6.

PASTPHSQIPPLPGMRSNSVGIQDAFPDGSDPTFQKRNSMTPNPGYQPSMNTSDMMGRMS
YEPNKDPYGSMRKAPGSDPFMSSGQGPNGGMGDPYSRAAGPGLGSVAMGPRQHYPYGGPY
DRVRTEPGIGPEGNMGTGAPQPNLMPST

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