Error calling a postgres function

[HectorMG02]

Hi, i have a postgres function in my db, im using dbeaver and i have my function which is something like this:

CREATE OR REPLACE FUNCTION public.jr_ver_res_partner_4()
 RETURNS TABLE(myData)
 LANGUAGE plpgsql
AS $function$
	BEGIN
		return query select * from res_partner rp where RP.ID=4;
	END;
$function$;

it works in my sql execute, but in my website im trying to call this function with something like this:

// Connect to Odoo
odoo.connect(function(err) {
    if (err) { return console.log(err); }

    console.log('conectado a odoo');

    // View Delivery Order
    odoo.rpc_call('public.jr_ver_res_partner_4()', '', function(err, result) {
        if (err) {
            console.log(err);
            return;
        }
        console.log(result);

    });
});

But it doesnt work, i recive a 404 code, how can i call one of my functions?? in the sql i execute it like this:

SELECT * FROM public.MyFunction()

but with node-odoo it doesnt works, what can i do?? thanks so much