What am I Doing Wrong with this Stored Procedure?

I'm trying to write a stored procedure. I've got the sql that works, having run the syntax as a basic query, but when I go to save it as a procedure, I get an error.

Here's my attempt:

-- ================================================
-- Template generated from Template Explorer using:
-- Create Procedure (New Menu).SQL
--
-- Use the Specify Values for Template Parameters
-- command (Ctrl-Shift-M) to fill in the parameter
-- values below.
--
-- This block of comments will not be included in
-- the definition of the procedure.
-- ================================================
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
-- =============================================
-- Author:            <Bruce Gust>
-- Create date: <February 6, 2014,>
-- Description:      <basic cer_model query>
-- =============================================
CREATE PROCEDURE <cer_modellist, BIProd, cer_modellist>
      -- Add the parameters for the stored procedure here
      @UserID int
AS
BEGIN
      -- SET NOCOUNT ON added to prevent extra result sets from
      -- interfering with SELECT statements.
      SET NOCOUNT ON;

    -- Insert statements for procedure here
      select cer.assettypeid, cer.statusid, cer.createuserid, cer.entityid, cer.createdate, cer.description
    from cer_model cer
      where cer.createuserid = @UserID
      order by cer.createuserid
            
END
GO

...and here's the error:

Msg 102, Level 15, State 1, Line 6
Incorrect syntax near '<'.
Msg 137, Level 15, State 2, Line 18
Must declare the scalar variable "@UserID".


What am I doing wrong?