No. SuiteScript can't create memorized transactions; SuiteScript can only call memorized transactions that have already been created in the NetSuite user interface. You can only use SuiteScript to Read, Update, Delete, or Search memorized transactions.
For more information on how SuiteScript can interact with existing memorized transactions, see page 180 of this PDF document:
https://docs.oracle.com/cloud/latest/netsuitecs_gs/NSSRG/NSSRG.pdf