Yes, there is an email reminder function for calendar entries. Upon creating a new entry, you can set when and how you would like to be reminded of it via “Reminders”.
Please choose “Enable Reminder”, and specify when and how you would like to be reminded of the event. As soon as your entry is confirmed, the reminder is activated.
You can also activate reminders for existing entries. Simply click on the entry, then the box described above opens again.