The domain within your query sequence starts at position 736 and ends at position 895; the E-value for the RPT_1 domain shown below is 2.4e-7.

EVQVPQAKESPGQVLPLSGESTAEEASAQVQPPSFEKAPLESLPLEEVEKIHLDNLPFEV
QPLPTEDIAIGVPAESQALPADENPAREDTVETQPSSFEGAPIAENPIEAPLPASEADTG
REDSAVHPSSLAPTDEAPAEIQILQTDDIPTEMSPVENQP

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